684 research outputs found

    Production of exotic isotopes in complete fusion reactions with radioactive beams

    Full text link
    The isotopic dependence of the complete fusion (capture) cross section is analyzed in the reactions 130,132,134,136,138,140,142,144,146,148,150^{130,132,134,136,138,140,142,144,146,148,150}Xe+48^{48}Ca with stable and radioactive beams. It is shown for the first time that the very neutron-rich nuclei 186191^{186-191}W can be reached with relatively large cross sections by complete fusion reactions with radioactive ion beams at incident energies near the Coulomb barrier. A comparison between the complete fusion and fragmentation reactions for the production of neutron-rich W and neutron-deficient Rn isotopes is performed.Comment: 13 pages, 6 figures, accepted in PR

    Pauli-Villars Regularization in nonperturbative Hamiltonian approach on the Light Front

    Full text link
    The advantage of Pauli-Villars regularization in quantum field theory quantized on the light front is explained. Simple examples of scalar λφ4\lambda\varphi^4 field theory and Yukawa-type model are used. We give also an example of nonperturbative calculation in the theory with Pauli-Villars fields, using for that a model of anharmonic oscillator modified by inclusion of ghost variables playing the role similar to Pauli-Villars fields.Comment: LaTeX, 10 pages, 2 figures. Article will be published in AIP Conference Proceedings, the final publication will be available at http://scitation.aip.org/content/aip/proceeding/aipc

    Glass transition in fullerenes: mode-coupling theory predictions

    Get PDF
    We report idealized mode-coupling theory results for the glass transition of ensembles of model fullerenes interacting via phenomenological two-body potentials. Transition lines are found for C60, C70 and C96 in the temperature-density plane. We argue that the observed glass-transition behavior is indicative of kinetic arrest that is strongly driven by the inter-particle attraction in addition to excluded-volume repulsion. In this respect, these systems differ from most standard glass-forming liquids. They feature arrest that occurs at lower densities and that is stronger than would be expected for repulsion-dominated hard-sphere-like or Lennard-Jones-like systems. The influence of attraction increases with increasing the number of carbon atoms per molecule. However, unrealistically large fullerenes would be needed to yield behavior reminiscent of recently investigated model colloids with strong short-ranged attraction (glass-glass transitions and logarithmic decay of time-correlation functions).Comment: 10 pages, 5 figure

    Equilibrium and stability of non-linearly elastic bodies with cavities containing fluid

    Get PDF
    Boundary conditions are formulated on the surface of a cavity filled with a compressible fluid or gas for the equilibrium problem of an elastic body experiencing large deformations. A formulation is given of the stability problem for the equilibrium of a non-linearly elastic body with fluid inclusions. The stability problem is solved for a thick-walled closed spherical shell filled with gas and loaded by external pressure. © 1988

    Op\u27i͡ani͡ela, Op. 150

    Get PDF
    https://scholarexchange.furman.edu/periphery-kharbintsy2/1018/thumbnail.jp

    Appealing the diagnosis of occupational disease (clinical and expert case).

    Get PDF
    The article presents a clinical and expert case of appealing the diagnosis of occupational disease. Purpose: to provide an example of substantiated answer to the court action concerning the appeal of the diagnosis of occupational disease. A medical history of a patient who worked as an electric welder suffering from chronic bronchitis is described. Data on regulatory documents, acting in accordance with the legislation of Ukraine are presented. The main controversial issues that arise when linking the disease to working conditions are studied

    Appealing the diagnosis of occupational disease (clinical and expert case).

    Get PDF
    The article presents a clinical and expert case of appealing the diagnosis of occupational disease. Purpose: to provide an example of substantiated answer to the court action concerning the appeal of the diagnosis of occupational disease. A medical history of a patient who worked as an electric welder suffering from chronic bronchitis is described. Data on regulatory documents, acting in accordance with the legislation of Ukraine are presented. The main controversial issues that arise when linking the disease to working conditions are studied
    corecore